just got an answer from one of my question of interest at the start,with the fourth character below, but the other one on the grey map it seems edited when compared with the yellow map character and too blurry to distinguish. i hope to get a good copy of the yellow map.

many thanks yamideo for the map. do you have also the yellow colored version just like posted by whizkey's of the same place with a lot of japanese character written in it? shown attach herein, the one in the middle, hoping for a clearer of that too. thanks again.